bleeding after stopping Tri Sprintec (pill)

Hey so I just started taking the pill (Tri Sprintec) a month ago and I finished that pack and then I started he second month and couldn't take the nausea anymore from being on the pill so I stopped it this past Wednesday. My boyfriend and I did have unprotected sex like 5 times while I was on the pill but he always pulled out like 2 minutes before for extra caution lol. But anyway I started bleeding yesterday since I've been on it and I read that that's normal but I was just wondering if this has happened to any of you guys and how long you bled for ?